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    <h1 id="site_title"><span>Ruby on Rails</span></h1>
    <h2 id="site_title_tagline">Sustainable productivity for web-application development</h2>

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      <li class="first-child"><a href="http://www.rubyonrails.org/" title="Ruby on Rails" class="ruby_on_rails">Ruby on Rails</a></li>
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        <h1>Ruby on Rails Guides</h1>
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<div class="paragraph"><p>These guides are designed to make you immediately productive with Rails, and to help you understand how all of the pieces fit together. There are two different versions of the Guides site, and you should be sure to use the one that applies to your situation:</p></div>
<div class="ulist"><ul>
<li>
<p>
<a href="http://guides.rubyonrails.org/">Current Release version</a> - based on Rails 2.2
</p>
</li>
<li>
<p>
<a href="http://guides.rails.info/">Edge Rails version</a> - based on the Rails 2.3 branch
</p>
</li>
</ul></div>
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<td class="content">This page is the result of ongoing <a href="http://hackfest.rubyonrails.org/guide">Rails Guides hackfest</a> and a work in progress.</td>
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<td class="content">Guides marked with this icon are currently being worked on. While they might still be useful to you, they may contain incomplete information and even errors. You can help by reviewing them and posting your comments and corrections at the respective Lighthouse ticket.</td>
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<h2>Start Here</h2>
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<div class="sidebar-title"><a href="getting_started_with_rails.html">Getting Started with Rails</a></div>
<div class="paragraph"><p>Everything you need to know to install Rails and create your first application.</p></div>
</div></div>
<h2>Models</h2>
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<div class="sidebar-title"><a href="migrations.html">Rails Database Migrations</a></div>
<div class="paragraph"><p>This guide covers how you can use Active Record migrations to alter your database in a structured and organized manner.</p></div>
</div></div>
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<div class="sidebar-content">
<div class="sidebar-title"><a href="activerecord_validations_callbacks.html">Active Record Validations and Callbacks</a></div>
<div class="admonitionblock">
<table><tr>
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<img src="./images/icons/caution.png" alt="Caution" />
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<td class="content"><a href="http://rails.lighthouseapp.com/projects/16213/tickets/26">Lighthouse Ticket</a></td>
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<div class="paragraph"><p>This guide covers how you can use Active Record validations and callbacks.</p></div>
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<div class="sidebar-title"><a href="association_basics.html">Active Record Associations</a></div>
<div class="paragraph"><p>This guide covers all the associations provided by Active Record.</p></div>
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<div class="sidebar-title"><a href="active_record_querying.html">Active Record Query Interface</a></div>
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<img src="./images/icons/caution.png" alt="Caution" />
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<td class="content"><a href="http://rails.lighthouseapp.com/projects/16213/tickets/16">Lighthouse Ticket</a></td>
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</div>
<div class="paragraph"><p>This guide covers the database query interface provided by Active Record.</p></div>
</div></div>
<h2>Views</h2>
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<div class="sidebar-title"><a href="layouts_and_rendering.html">Layouts and Rendering in Rails</a></div>
<div class="paragraph"><p>This guide covers the basic layout features of Action Controller and Action View,
including rendering and redirecting, using <tt>content_for</tt> blocks, and working
with partials.</p></div>
</div></div>
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<div class="sidebar-title"><a href="form_helpers.html">Action View Form Helpers</a></div>
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<img src="./images/icons/caution.png" alt="Caution" />
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<td class="content"><a href="http://rails.lighthouseapp.com/projects/16213/tickets/1">Lighthouse Ticket</a></td>
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<div class="paragraph"><p>Guide to using built in Form helpers.</p></div>
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<h2>Controllers</h2>
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<div class="sidebar-title"><a href="routing_outside_in.html">Rails Routing from the Outside In</a></div>
<div class="paragraph"><p>This guide covers the user-facing features of Rails routing. If you want to
understand how to use routing in your own Rails applications, start here.</p></div>
</div></div>
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<div class="sidebar-title"><a href="actioncontroller_basics.html">Basics of Action Controller</a></div>
<div class="paragraph"><p>This guide covers how controllers work and how they fit into the request cycle in your application. It includes sessions, filters, and cookies, data streaming, and dealing with exceptions raised by a request, among other topics.</p></div>
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<h2>Digging Deeper</h2>
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<div class="sidebar-title"><a href="action_mailer_basics.html">Action Mailer Basics</a></div>
<div class="admonitionblock">
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<td class="icon">
<img src="./images/icons/caution.png" alt="Caution" />
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<td class="content"><a href="http://rails.lighthouseapp.com/projects/16213/tickets/25">Lighthouse ticket</a></td>
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<div class="paragraph"><p>This guide describes how to use Action Mailer to send and receive emails.</p></div>
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<div class="sidebar-title"><a href="testing_rails_applications.html">Testing Rails Applications</a></div>
<div class="admonitionblock">
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<td class="icon">
<img src="./images/icons/caution.png" alt="Caution" />
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<td class="content"><a href="http://rails.lighthouseapp.com/projects/16213/tickets/8">Lighthouse Ticket</a></td>
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<div class="paragraph"><p>This is a rather comprehensive guide to doing both unit and functional tests
in Rails. It covers everything from &#8220;What is a test?&#8221; to the testing APIs.
Enjoy.</p></div>
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<div class="sidebar-title"><a href="security.html">Securing Rails Applications</a></div>
<div class="paragraph"><p>This guide describes common security problems in web applications and how to
avoid them with Rails.</p></div>
</div></div>
<div class="sidebarblock">
<div class="sidebar-content">
<div class="sidebar-title"><a href="debugging_rails_applications.html">Debugging Rails Applications</a></div>
<div class="paragraph"><p>This guide describes how to debug Rails applications. It covers the different
ways of achieving this and how to understand what is happening "behind the scenes"
of your code.</p></div>
</div></div>
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<div class="sidebar-title"><a href="performance_testing.html">Performance Testing Rails Applications</a></div>
<div class="paragraph"><p>This guide covers ways to benchmark and profile your Rails application.</p></div>
</div></div>
<div class="sidebarblock">
<div class="sidebar-content">
<div class="sidebar-title"><a href="creating_plugins.html">The Basics of Creating Rails Plugins</a></div>
<div class="paragraph"><p>This guide covers how to build a plugin to extend the functionality of Rails.</p></div>
</div></div>
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<div class="sidebar-title"><a href="i18n.html">The Rails Internationalization API</a></div>
<div class="admonitionblock">
<table><tr>
<td class="icon">
<img src="./images/icons/caution.png" alt="Caution" />
</td>
<td class="content"><a href="http://rails.lighthouseapp.com/projects/16213/tickets/23">Lighthouse ticket</a></td>
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<div class="paragraph"><p>This guide introduces you to the basic concepts and features of the Rails I18n API and shows you how to localize your application.</p></div>
</div></div>
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<div class="sidebar-title"><a href="configuring.html">Configuring Rails Applications</a></div>
<div class="paragraph"><p>This guide covers the basic configuration settings for a Rails application.</p></div>
</div></div>
<div class="sidebarblock">
<div class="sidebar-content">
<div class="sidebar-title"><a href="command_line.html">Rails Command Line Tools and Rake tasks</a></div>
<div class="paragraph"><p>This guide covers the command line tools and rake tasks provided by Rails.</p></div>
</div></div>
<div class="paragraph"><p>Authors who have contributed to complete guides are listed <a href="authors.html">here</a>.</p></div>
<div class="paragraph"><p>This work is licensed under a <a href="http://creativecommons.org/licenses/by-sa/3.0">Creative Commons Attribution-Share Alike 3.0 License</a></p></div>
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